28
5 SePem 01 Master
Note
Description of alert
Leak alert
Column
●
Numeric value inverted
Signal
light
●
Visual signal: lit for long
period
Buzzer
●
Audible signal: long signal
Remaining log-
ger battery power
less than 10%
(battery needs
changing)
Column
●
Field is black
●
No segments can be seen
Please note: A
leak alert is not a guarantee that a leak is ac-
tually present
.
In cases where the analysis of the measurement results confirms
that a leak may be present, this result should be checked using
an appropriate method (e.g. correlation) before any excavation
work is carried out.
5.5.2.4 Extended data set
The extended data set provides additional information on the
following:
●
A measurement (e.g. graphics),
●
The transmitting logger (e.g. radio times, last seven minimum
noise levels recorded).
The extended data set allows the measurements to be analysed
in more detail and the logger to be checked for correct functioning.
The extended data set for a measurement can be obtained by car-
rying out the patrol procedure in Section 5.5.2.2 as far as Step 6.
Note:
The extended data set can only ever be read out for the most
recent measurement carried out by a logger or the measurement
currently in progress.